Jorgensen, P. E. T <br/><br/>
Spectral theory for infinitesimal generators of one-parameter groups of isometries  the minimax principle and compact perturbations 
Palle E. T. Jorgensen 
 - Aarhus  Universitet Aarhus  1980/81 
 - 48 p  20 cm 
 - Preprint series  40 .
<br/><br/> Contine bibliografie  Lucrarea este multigrafiata